Warning: Communication timeout - resetting communication buffer.

I've been getting this on a number of prints when I use a raft. the print goes and starts up normally and then will fail at some point in the raft. Once it hits the communication timeout the job is failed. I'm running smoothieware on an Azteeg X5 GT.

2:53:59.621: ok
2:53:59.621: N310 G0 F4800 X58.982 Y4.814
2:53:59.621: N311 G0 F1500 Z1.000
2:54:30.627: Warning: Communication timeout - resetting communication buffer.
2:54:30.627: Connection status: Buffered:125, Manual Commands: 2, Job Commands: 5000
2:54:30.627: Buffer used:125 Enforced free byte:41 lines stored:6



Comments

  • here is the gcode for that layer up until the failure.

    2:53:18.438: M117 Layer 2/373
    2:53:18.438: N182 M105
    2:53:18.440: ok T:205.9 /203.0 @0 B:60.2 /60.0 @75
    2:53:18.440: N183 M105
    2:53:18.883: ok
    2:53:18.883: N184 G1 X79.166 Y44.155 E17.5685
    2:53:19.223: ok (2)
    2:53:19.223: N185 G1 X79.166 Y44.355 E17.6018
    2:53:19.225: ok T:206.0 /203.0 @255 B:60.2 /60.0 @26 (2)
    2:53:19.225: N186 G1 X79.366 Y44.555 E17.6488
    2:53:21.506: ok
    2:53:21.506: N187 M105
    2:53:21.506: N188 M105
    2:53:23.136: ok
    2:53:23.136: N189 M105
    2:53:23.136: N190 G1 X79.366 Y44.755 E17.6821
    2:53:25.417: ok
    2:53:25.417: N191 M105
    2:53:25.417: N192 M105
    2:53:25.419: ok T:206.5 /203.0 @104 B:60.2 /60.0 @25 (2)
    2:53:25.419: N193 G1 X79.766 Y45.155 E17.7762
    2:53:25.420: ok T:206.5 /203.0 @104 B:60.2 /60.0 @25
    2:53:25.741: ok
    2:53:25.741: N194 G1 X79.766 Y45.355 E17.8094
    2:53:25.743: ok T:206.5 /203.0 @0 B:60.2 /60.0 @0 (2)
    2:53:25.743: N195 G1 X80.166 Y45.755 E17.9035
    2:53:27.490: ok
    2:53:27.491: M117 ETA 07:42:00 day 6
    2:53:27.491: N196 M105
    2:53:27.491: N197 M105
    2:53:27.560: ok
    2:53:27.561: N198 G1 X80.166 Y46.393 E18.0096
    2:53:27.586: ok
    2:53:27.586: N199 G1 X81.366 Y46.993 E18.2327
    2:53:27.587: ok
    2:53:27.587: ok T:206.4 /203.0 @103 B:60.2 /60.0 @25
    2:53:27.587: N200 G1 X81.366 Y48.955 E18.5590
    2:53:27.589: ok T:206.4 /203.0 @103 B:60.2 /60.0 @25
    2:53:27.658: ok
    2:53:27.658: N201 G1 X81.566 Y49.155 E18.6060
    2:53:27.683: ok
    2:53:27.683: N202 G1 X81.566 Y56.825 E19.8815
    2:53:27.718: ok
    2:53:27.718: N203 G1 X80.966 Y57.025 E19.9867
    2:53:27.743: ok
    2:53:27.743: N204 G1 X80.966 Y62.807 E20.9483
    2:53:27.813: ok
    2:53:27.813: N205 G1 X81.566 Y63.007 E21.0535
    2:53:27.838: ok
    2:53:27.838: N206 G1 X81.566 Y70.677 E22.3290
    2:53:27.874: ok
    2:53:27.874: N207 G1 X81.366 Y70.877 E22.3760
    2:53:27.899: ok
    2:53:27.899: N208 G1 X81.366 Y72.839 E22.7023
    2:53:27.969: ok
    2:53:27.969: N209 G1 X81.029 Y73.007 E22.7649
    2:53:27.995: ok
    2:53:27.995: N210 G1 X79.766 Y74.294 E23.0648
    2:53:28.066: ok
    2:53:28.066: N211 G1 X79.766 Y74.477 E23.0952
    2:53:28.091: ok
    2:53:28.091: N212 G1 X79.566 Y74.677 E23.1423
    2:53:28.126: ok
    2:53:28.126: N213 G1 X79.566 Y74.877 E23.1755
    2:53:28.151: ok
    2:53:28.151: N214 G1 X79.166 Y75.277 E23.2696
    2:53:28.223: ok
    2:53:28.223: N215 G1 X79.166 Y75.477 E23.3029
    2:53:28.248: ok
    2:53:28.248: N216 G1 X78.966 Y75.677 E23.3499
    2:53:28.283: ok
    2:53:28.283: N217 G1 X78.966 Y75.877 E23.3832
    2:53:28.308: ok
    2:53:28.308: N218 G1 X78.566 Y76.277 E23.4772
    2:53:28.379: ok
    2:53:28.379: N219 G1 X78.566 Y76.477 E23.5105
    2:53:28.405: ok
    2:53:28.405: N220 G1 X78.366 Y76.677 E23.5575
    2:53:28.475: ok
    2:53:28.475: N221 G1 X78.366 Y76.877 E23.5908
    2:53:28.500: ok
    2:53:28.500: N222 M105
    2:53:28.500: N223 G1 X77.966 Y77.277 E23.6849
    2:53:28.536: ok
    2:53:28.536: N224 G1 X77.966 Y77.477 E23.7181
    2:53:28.561: ok
    2:53:28.562: ok T:206.5 /203.0 @101 B:60.2 /60.0 @74
    2:53:28.562: N225 G1 X77.766 Y77.677 E23.7652
    2:53:28.632: ok
    2:53:28.632: N226 G1 X77.766 Y77.877 E23.7984
    2:53:28.657: ok
    2:53:28.657: N227 G1 X77.366 Y78.277 E23.8925
    2:53:28.692: ok
    2:53:28.692: N228 G1 X77.366 Y78.477 E23.9258
    2:53:28.717: ok
    2:53:28.717: N229 G1 X77.166 Y78.677 E23.9728
    2:53:28.788: ok
    2:53:28.788: N230 G1 X77.166 Y78.877 E24.0061
    2:53:28.813: ok
    2:53:28.813: N231 G1 X76.766 Y79.277 E24.1001
    2:53:28.885: ok
    2:53:28.885: N232 G1 X76.766 Y79.477 E24.1334
    2:53:28.965: ok
    2:53:28.965: N233 G1 X76.566 Y79.677 E24.1804
    2:53:29.133: ok
    2:53:29.133: N234 G1 X76.566 Y79.877 E24.2137
    2:53:29.379: ok
    2:53:29.379: N235 G1 X76.166 Y80.277 E24.3078
    2:53:29.414: ok
    2:53:29.414: N236 G1 X76.166 Y80.477 E24.3410
    2:53:30.377: ok
    2:53:30.377: N237 M105
    2:53:30.377: N238 G1 X75.966 Y80.677 E24.3881
    2:53:30.456: ok
    2:53:30.456: N239 G1 X75.966 Y80.877 E24.4213
    2:53:31.181: ok
    2:53:31.182: ok T:206.7 /203.0 @0 B:60.2 /60.0 @0
    2:53:31.182: N240 M105
    2:53:31.182: N241 G1 X75.566 Y81.277 E24.5154
    2:53:31.260: ok
    2:53:31.260: N242 G1 X75.566 Y81.477 E24.5486
    2:53:32.222: ok
    2:53:32.223: ok T:206.7 /203.0 @95 B:60.2 /60.0 @25
    2:53:32.223: N243 M105
    2:53:32.223: N244 G1 X75.366 Y81.677 E24.5957
    2:53:32.258: ok
    2:53:32.258: N245 G1 X75.366 Y81.877 E24.6289
    2:53:32.504: ok
    2:53:32.505: ok T:206.7 /203.0 @0 B:60.2 /60.0 @25
    2:53:32.505: N246 G1 X74.966 Y82.277 E24.7230
    2:53:32.551: ok
    2:53:32.551: N247 M105
    2:53:32.551: N248 G1 X74.966 Y82.477 E24.7563
    2:53:32.777: ok
    2:53:32.777: N249 G1 X74.566 Y82.877 E24.8504
    2:53:32.800: ok
    2:53:32.800: N250 G1 X74.566 Y96.816 E27.1684
    2:53:32.801: ok T:206.7 /203.0 @94 B:60.2 /60.0 @25
    2:53:32.835: ok
    2:53:32.835: N251 G1 X71.980 Y96.816 E27.5985
    2:53:32.860: ok
    2:53:32.860: N252 G1 X71.981 Y115.174 E30.6514
    2:53:32.931: ok
    2:53:32.932: N253 G1 X58.981 Y115.174 E32.8133
    2:53:32.956: ok
    2:53:32.957: N254 G1 X58.981 Y96.191 E35.9702
    2:53:32.992: ok
    2:53:32.992: N255 G1 X38.466 Y75.678 E40.7948
    2:53:33.017: ok
    2:53:33.017: N256 G1 X38.466 Y42.990 E46.2308
    2:53:33.088: ok
    2:53:33.088: N257 G0 F4800 X39.600 Y42.290
    2:53:33.113: ok
    2:53:33.114: N258 G1 F480 X39.600 Y76.981 E52.0000
    2:53:33.149: ok
    2:53:33.149: N259 G0 F4800 X42.000 Y79.381
    2:53:33.173: ok
    2:53:33.174: N260 G1 F480 X42.000 Y40.650 E58.4410
    2:53:33.245: ok
    2:53:33.245: N261 G0 F4800 X44.400 Y38.250
    2:53:33.270: ok
    2:53:33.270: N262 G1 F480 X44.400 Y81.781 E65.6802
    2:53:33.305: ok
    2:53:33.305: N263 G0 F4800 X46.800 Y84.181
    2:53:33.330: ok
    2:53:33.330: N264 G1 F480 X46.800 Y35.850 E73.7177
    2:53:33.401: ok
    2:53:33.402: N265 G0 F4800 X49.200 Y33.450
    2:53:33.427: ok
    2:53:33.427: N266 G1 F480 X49.200 Y86.580 E82.5532
    2:53:33.462: ok
    2:53:33.462: N267 G0 F4800 X51.600 Y88.980
    2:53:33.487: ok
    2:53:33.487: N268 G1 F480 X51.600 Y31.050 E92.1870
    2:53:33.558: ok
    2:53:33.558: N269 M105
    2:53:33.558: N270 G0 F4800 X54.000 Y28.650
    2:53:33.618: ok (2)
    2:53:33.619: ok T:206.7 /203.0 @93 B:60.2 /60.0 @25
    2:53:33.619: N271 G1 F480 X54.000 Y91.380 E102.6191
    2:53:33.619: N272 G0 F4800 X56.400 Y93.780
    2:53:33.644: ok
    2:53:33.644: N273 G1 F480 X56.400 Y22.896 E114.4071
    2:53:33.714: ok
    2:53:33.714: N274 G0 F4800 X58.800 Y22.896
    2:53:33.739: ok
    2:53:33.739: N275 G1 F480 X58.800 Y96.180 E126.5943
    2:53:33.775: ok
    2:53:33.775: N276 G0 F4800 X73.200 Y96.936
    2:53:33.800: ok
    2:53:33.800: N277 G1 F480 X73.200 Y22.896 E138.9072
    2:53:33.871: ok
    2:53:33.871: N278 G0 F4800 X75.600 Y38.219
    2:53:33.896: ok
    2:53:33.896: N279 G1 F480 X75.600 Y81.613 E146.1237
    2:53:33.931: ok
    2:53:33.931: N280 G0 F4800 X78.000 Y77.613
    2:53:33.956: ok
    2:53:33.956: N281 G1 F480 X78.000 Y42.219 E152.0097
    2:53:34.027: ok
    2:53:34.028: N282 G0 F4800 X80.400 Y46.376
    2:53:34.053: ok
    2:53:34.053: N283 G1 F480 X80.400 Y73.820 E156.5737
    2:53:34.124: ok
    2:53:34.124: N284 G0 F4800 X70.800 Y115.294
    2:53:35.872: ok
    2:53:35.872: M117 ETE 04:47:46
    2:53:35.872: N285 M105
    2:53:35.872: N286 M105
    2:53:36.196: ok
    2:53:36.196: N287 G1 F480 X70.800 Y4.699 E174.9657
    2:53:38.498: ok (2)
    2:53:38.499: N288 M105
    2:53:38.499: N289 M105
    2:53:38.499: N290 G0 F4800 X68.400 Y4.698
    2:53:38.500: ok T:206.9 /203.0 @0 B:60.2 /60.0 @24 (2)
    2:53:40.129: ok
    2:53:40.129: N291 M105
    2:53:40.129: N292 G1 F480 X68.400 Y115.294 E193.3579
    2:53:40.131: ok T:206.8 /203.0 @255 B:60.1 /60.0 @74 (2)
    2:53:40.131: N293 G0 F4800 X66.000 Y115.294
    2:53:42.509: ok
    2:53:42.511: ok T:206.8 /203.0 @0 B:60.2 /60.0 @24
    2:53:42.511: N294 M105
    2:53:42.511: N295 M105
    2:53:46.148: ok
    2:53:46.148: M117 Layer 2/373
    2:53:46.148: N296 M105
    2:53:46.149: N297 M105
    2:53:50.247: ok
    2:53:50.247: N298 M105
    2:53:50.247: N299 M105
    2:53:50.249: ok T:206.7 /203.0 @74 B:60.2 /60.0 @24 (2)
    2:53:50.249: ok
    2:53:50.249: N300 G1 F480 X66.000 Y4.697 E211.7502
    2:53:50.249: N301 G0 F4800 X63.600 Y4.696
    2:53:50.252: ok T:206.7 /203.0 @74 B:60.2 /60.0 @24 (4)
    2:53:50.252: N302 G1 F480 X63.600 Y115.294 E230.1427
    2:53:50.284: ok
    2:53:50.284: N303 G0 F4800 X61.200 Y115.294
    2:53:54.636: ok
    2:53:54.636: N304 M105
    2:53:54.636: N305 M105
    2:53:54.699: ok
    2:53:54.699: N306 G1 F480 X61.200 Y4.695 E248.5354
    2:53:54.700: N307 M106 S255
    2:53:59.557: ok
    2:53:59.558: ok T:206.4 /203.0 @67 B:60.2 /60.0 @24
    2:53:59.558: M117 ETA 07:40:58 day 6
    2:53:59.558: N308 M105
    2:53:59.558: N309 M105
    2:53:59.559: ok T:206.4 /203.0 @67 B:60.2 /60.0 @24
    2:53:59.621: ok
    2:53:59.621: N310 G0 F4800 X58.982 Y4.814
    2:53:59.621: N311 G0 F1500 Z1.000
    2:54:30.627: Warning: Communication timeout - resetting communication buffer.
    2:54:30.627: Connection status: Buffered:125, Manual Commands: 2, Job Commands: 5000
    2:54:30.627: Buffer used:125 Enforced free byte:41 lines stored:6

  • my timeout is set to 30 seconds, going to try increasing this to see if I can get past the issue.
  • I have wiring issues on the printer
  • As you clearly see there is no "ok" after the last command. Smoothieware should send one once finished and if it does not firmware assume sit was just not read and sends next commands with the timeout. So far everything normal but if nothing happens on both sides so new commands are ignored and no feedback coming the serial communication between os and printer is broken. So wiring problems might be in deed the problem. Make sure cable stays away from heater and motor cables. Also make sure power is constant on both sides.
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